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Finding the Fourth Proportional to 8,208.16, 12,311.92 and 2,736.16

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Solution

The fourth proportional to 8,208.16, 12,311.92 and 2,736.16 is: 4,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.16 : 12,311.92 = 2,736.16 : x
  2. Step 2: Convert to fraction form
    8,208.16/12,311.92 = 2,736.16/x
  3. Step 3: Cross multiply
    8,208.16x = 12,311.92 × 2,736.16
  4. Step 4: Simplify right side
    8,208.16x = 33,687,383.03
  5. Step 5: Solve for x
    x = 33,687,383.03/8,208.16
  6. Step 6: Final answer
    x = 4,104.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.